Improvement in preparing liquid rose-pink



UNITED STATES PATENT OFFICE.

JOHN W. PERRY, or BOSTON, MAss, ASSIGNOR TO JAMES W. GATES.

IMPROVEMENT IN PREPARING LIQUID ROSE-PINK.

Specification forming part of Letters Patent No. 17,610, dated June 16, 1857.

To all whom it may concern.-

Be it known that I, JOHN W. PERRY, of Boston, in the county of Suffolk and State of Massachusetts, have invented a newv and useful Mode of Preparing Liquid Rose-Pink used in Imitations of Rose-Wood, 820.; and I do hereby declare that the following description forms a full and exact specification of the same, wherein I have set forth the nature and principles of my said invention, by which it may be distinguished from others of a similar class, together with such parts as I claim and desire to have secured to me by Letters Patent.

The object of the present invention is to form a preparation to be used in the imitation of rose-woods, &c., which shall be transparent, those commonly employed being opaque. This result is obtained in the following manner: To one gallon of water is added one-quarter of a pound of potash, to which, when the potash is dissolved, is added onequarter of a pound of ground red -sanders wood. \Vhen the color of the wood is extracted, two and one-half pounds of gum-shellac are put in. The mixture is placed over a strong, quick fire and stirred till the gum-shellac is dissolved.

This preparation is to be used in a groundwork made with logwood-stain, and can be applied with a paint-brush; or the article to which it is to be applied can be dipped into the solution, which should be at a temperature of blood-heat, -(Fahrenheit.)

In the above preparation the potash serves two important purposes, viz: first, in extracting the color from the wood, (water alone possessing no such power;) and, secondly, in dissolving and holding in solution the gum-shellac.

Having thus described my improvements, what I claim as my invention, and desire to have secured to me by Letters Patent, is-

The combination of the ingredients hereinabove described for producing a transparent A and mixed substantially in the proportions hereinabove described.

J. W. PER-RSL' Witnesses:

J osnrrr GAVETT, EsEN LINCOLN. 

